LBE – minimal balance changes for Heroes V 3.1.

50%? Vampires are level 4 creatures that are easily defeated by almost any other creature of the same level. Except for Gnomes. They won't last long against Druids of the same size. Even the lack of surrender doesn't help them.

In my opinion, it is necessary, first of all, to value a unit based on its usefulness in the army, and not in comparison with others, as Nargott did. And only then proceed from other parameters. In general, you can increase their cost in dark energy, of course - as the most optimal option, but...